Multistage pumps boiler water supply system notes
In order to ensure multistage pump boiler water supply system safe work, avoid accidents. Should pay attention to the following:
①boiler water supply system layout and multistage pumps water supply equipment and service used platform counting and capacity, should meet boiler full load operating maximum water consumption, generally should stay 25% ~ 35% allowance, its head also has 35% allowance.
② different work pressure boiler should have independent water supply pipe, and water supply pressure should not exceed 20% of the highest working pressure, can through multistage pump water supply to supply to the boiler.
③ economizer entrance multistage pumps water supply pipe should be installed globe valve and check valve, and leads to the boiler water supply pipe should install globe valve and check valve. and the globe valve should be installed between boiler and water supply check valve, and connects with the check valve.
④ rated evaporation larger than 4t/h boiler, should be installed automatic water regulator, and in fire workers easy operation place to install manually control water supply system.
⑤ Soft water tank volume should be sufficient, multistage water supply pipe flow need to be reasonable.
